The Apple iPhone 13 was announced in 2021, September 14 With 6.1 inches, 90.2 cm2 (~86.0% screen-to-body ratio) Super Retina XDR OLED, HDR10, Dolby Vision, 800 nits (HBM), 1200 nits (peak), Powered by Apple A15 Bionic (5 nm) and running iOS 15, up to iOS 15.6, planned upgrade to iOS 16, the device delivered smooth performance and multitasking capabilities. while the Li-Ion 3240 mAh, non-removable (12.41 Wh) ensured long-lasting usage.